Troubleshooting
Berlandier's Jatropha problems — and how to fix them
Berlandier's Jatropha (Jatropha berlandieri) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Caudex and root rot
Overwatering, especially in cool or low-light conditions, rapidly causes internal caudex rot that is often invisible until the plant collapses. Always use a fast-draining mix and withhold water in winter completely.
Winter leaf drop
The plant is naturally deciduous in response to cold or dry conditions. This is not a disease — keep the caudex warm and dry until new growth emerges in spring, then resume a normal watering schedule.
Mealybugs and aphids
Soft-bodied insects can colonize new growth and the caudex surface. Treat with isopropyl alcohol swabs or neem oil. Inspect the caudex surface as well as leaf bases.
Prevent berlandier's jatropha problems before they start
Most berlandier's jatropha issues are care-mismatch, not bad luck. Dial in the basics:
Berlandier's Jatropha problems — FAQ
Why is my berlandier's jatropha caudex and root rot?
Overwatering, especially in cool or low-light conditions, rapidly causes internal caudex rot that is often invisible until the plant collapses. Always use a fast-draining mix and withhold water in winter completely.
Why is my berlandier's jatropha winter leaf drop?
The plant is naturally deciduous in response to cold or dry conditions. This is not a disease — keep the caudex warm and dry until new growth emerges in spring, then resume a normal watering schedule.
Why is my berlandier's jatropha mealybugs and aphids?
Soft-bodied insects can colonize new growth and the caudex surface. Treat with isopropyl alcohol swabs or neem oil. Inspect the caudex surface as well as leaf bases.